Abstract
Anti-PD-(L)1 agents play an important role in the management of NSCLC. PD-L1 analysis by immunohistochemistry is an important biomarker but displays temporospatial heterogeneity. In advanced NSCLC, metabolic parameters tumoural maximum standardised uptake value (SUVmax) and total lesion glycolysis (TLG) of 18F-FDG-PET/CT have been shown to correlate with PD-L1 expression. However, advanced status itself has been associated with high SUVmax and the relationship in early-stage disease has yet to be determined.
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